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149051031 = 3411211797
BaseRepresentation
bin10001110001001…
…01011010010111
3101101110120120120
420320211122113
5301124113111
622442403023
73456625053
oct1070453227
9341416516
10149051031
1177154278
1241b00473
1324b58c9c
1415b1cc63
15d143406
hex8e25697

149051031 has 8 divisors (see below), whose sum is σ = 203582064. Its totient is φ = 96943680.

The previous prime is 149051027. The next prime is 149051041. The reversal of 149051031 is 130150941.

149051031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149051031 - 22 = 149051027 is a prime.

It is a super-2 number, since 2×1490510312 = 44432419684325922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149050992 and 149051010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149051041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605776 + ... + 606021.

It is an arithmetic number, because the mean of its divisors is an integer number (25447758).

Almost surely, 2149051031 is an apocalyptic number.

149051031 is a deficient number, since it is larger than the sum of its proper divisors (54531033).

149051031 is a wasteful number, since it uses less digits than its factorization.

149051031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211841.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 149051031 is about 12208.6457479935. The cubic root of 149051031 is about 530.2064355433.

The spelling of 149051031 in words is "one hundred forty-nine million, fifty-one thousand, thirty-one".

Divisors: 1 3 41 123 1211797 3635391 49683677 149051031